Pipe-coupling.



G. H. REYNOLDS, DEGD.

A. B. REYNOLDS, ADMIHISTRATEIX.

PIPE COUPLING.

APPLIOATIOH FILED OUT. 8, 1906.

943,46 1 Patented Dec. 14, 1909.

2 SHEETS-SHEET l.

wit 0 sea I I v/nbo'z 9 76 77 Z G. H. REYNOLDS, DEGD.

A. E. REYNOLDS, ADMINISTBATRIX.

PIPE COUPLING.

APPLIOATION FILED 00w. 8, 1906.

Patehted Dec.14,1909.

2 SHEETS-SHEET 2.

GEORGEH REYNOLDS, 0F MANSFIELD DEPOT, CONNECTICUT; .ADBY E. REYNOLDS, AD

MTNISTRATRIX OF GEORGE H. REYNOLDS,

. FIRE EXTIN GUISHER COMPANY, A CORPORATION OF NEW YORK.

PIPE-COUPLING.

Specification of Letters Patent.

Application filed October 8, 1906. Serial No. 338,020. 1

To all whom it may concern:

Be it known that I, GEORGE H. REYNOLDS, a citizen of the United States, and a resident ofMansfleld Depot, in the county of Tolland and State of Connecticut, have invented certain new and useful Improvements in Pipe-Couplings, of which the following is a specification. This invent-ion, which is an improvement of my pipe coupling described in U. S. -Patent No."787,79l,' dated April 18, 1905, relates to pipe couplings, and its object is the production of a coupling for flanged pipe sections, comprising essentially clamping devices which are dovetailed with the flanged ends of the pipe sections, when in operative position.

The organization of the invention is such that when the clamping devices are being placed in operative position with the flanged pipe sections, they will creep up on flared surfaces of said sections. Shoulders extend from the flared surfaces, and when corresponding shoulders of the clamping device engage the shoulders extending from the flared surfaces, binding forces. are established which hold the flangedpipe sections in place and tend to crush them. Surfaces are formed on the clamping devices which abut with each other, while the other p'ortions thereof are forcing the pipe sections together. The said abutting surfaces constitute a center of movements or fulcrum for the said forces, the directions of which are indicated by the arrows in Fig. 4. The members of the clamping devices are separated somewhat from each other, and the bolt holes therein are somewhat larger than the clamping bolts to allow the said creeping, and the subsequent engagement of the shoulders, of the clamping devices and flanged pipe sections. The latter action reduces the diameter of the outer contour of the clamping devices. My preferred form of clamping devices are sectional rings, and clamps as hereafter described can also be used.

In the drawings Figure 1 represents an axial section of the preferred form of coupling with a pair of pipe sections, Fig. 2 shows an end View of Fig. 1, Fig. 3 1s a top plan view of Fig. 2 and Fig. 4 represents an enlarged portion of Fig. 1, Fig. 5 shows an elevation of amodification of the invention, Fig. 6 is atop plan view of Fig. 5, and Fig. 7 is a section of Fig. 6 on the l1ne7, 7.

A pair of ipe sections 10, have formed at their ends anges 11, with their end faces 12 at right angles to the lon itudinal axes of the said sections. The si es 13 of the flanges diverge orflare out from the outerv cylindrical surfaces of the pipe sections, and then the contour of each flange takes a direct-ion at right angles to the flared out portion forming a shoulder 14:, after which the 'outer surface of the pipe flange is cylindrical and square with the said end face thereof.

The pipe-flanges 11 are dovetailed with the sectional clamping rings 15, the latter having surfaces to conform to the accompanying surfaces of the flanges of the pipe sections.

/ Each clamping ring115consists of the sectional members 16, the members of one ring DECEASED, ASSIGNOR TO GENERAL Patented Dec. 14,1909.

breaking joints with the members of the the flanged pipe ends 11, and perform the functions of a crum or center of movements when the bolts 17 bring the clamping rings and flanges home. It will be noted by virtue of the said fulcrums and the dovetailed surfaces of contact between the clamping rings and the flanged ends of the pipesections, that when the bolts 17 are screwed up, the direction of the forces established between the clamping rings and flanged pipe sections will be approximately in the directions of the arrowsshown in Fig. 4:, obtaining a practically tight joint with the packing 21 which is located between the ends of the pipe sections,

In the modification of the invention shown in Figs. 5 to 7, a pair of pipe sections 25,

similar to 10 with flanges 26 similar to 11, Y

are clamped together by means of clamps 27, which are dovetailed with the pipe sections as shown. The clamps 27 are held together and clamp the flanges in pairs, by means of with the flared flanged ends of pipe sections,

of sectional clampin rings dovetailed with the said flanged en s, the members of one sectional ring breaking joints with the members of theother sectional ring, the members of each ring separated sufliciently to allow.

them to clamp the pipe sections tightly together, the sald rings havingflared surfaces and shoulders a't'right-angles to said flared surfaces.

2. In a pipe coupling the combination with flared flanged ends of pipe sections, of sectional clamping rings dovetailed with the said flanged ends, the members of each sectional rin breaking Joints with members of the other sectional ring, annular projections extending from the abutting accompanying faces of the rings and at the outer edges thereof, the rings having flared surfaces and shoulders at right angles to said flared surfaces, bolts joining the rings located between the said projections and bearing surfaces between the rings and said flanged ends, and packing between end faces of the pipe sections.

3. In combination with pipe-sections each provided with a smooth-faced end-flange formed at substantially a right-angle to its length, said pipe-sections being arranged in separated from each other and Y alinement with the faces of the flanges abutted and each having its periphery ad- 40 pipe-sections and applied directly to the backs of said flanges, the engaging surfaces of the clampin members being grooved and formed to confbrm to said flanges and pipesections; and bolts. passing through the clamping-members for forcing the same together and upon the opposedflanges so as to forcibly drive the abutting ends of the pipe-sections and faces of the flanges tightly together. V

4. In combination with pipe-sections arranged with their ends abutted, said sections each having an angular flange which, when the pipe-sections are together, form a dovetail-flange; a plurality of clamping-members, applied directly to the backs of said flanges, havin their engaging surfaces grooved to conform to said dove-tail flange; means applied directly to said clampingmembers for forcing them together upon said dove-tail flange; and means compelling the clamping-members to apply their clamping force upon said dove-tail flange in a direction at an angle to its surfaces and to the length of the pipe-sections.

Signed at the borough of Manhattan in the county of'New -York and State of New York this 5th ylay of October A. D. 1906.

GEORGE H. REYNOLDS.

. Witnesses:

MAY E. OAPLING, H. L. (humans. 

